AMS are one of the big boys and were designed back in 2009 for the 335i by memory. I have read the new AA is different to the old AA (which was overpriced) and the new AA has a few fitment issues by memory.

ER is damn nice but too pricey, ETS is nice but a few guys rated AMS> ETS... A mate of a mate is running AMS on his R35 GTR and that thing is a weapon

TBH like me do your own research and work out what your gut feeling is regarding what manufacturer offers the best product for the price you cant go wrong with any of them as they all outflow the oem item!

AMS are one of the big boys and were designed back in 2009 for the 335i by memory. I have read the new AA is different to the old AA (which was overpriced) and the new AA has a few fitment issues by memory.

ER is damn nice but too pricey, ETS is nice but a few guys rated AMS> ETS... A mate of a mate is running AMS on his R35 GTR and that thing is a weapon

TBH like me do your own research and work out what your gut feeling is regarding what manufacturer offers the best product for the price you cant go wrong with any of them as they all outflow the oem item!

I think i prefer the HPF as it integrates the factory couplers, the AME does not it seems.

Also has the extra support brackets to support weight.

Factory couplers are smaller so not necessarily better (by memory oem are 2.5" -2.75" AMS is 3" and the brackets to support weight may indicate that its a heavy item, no use weighing down the car with a huge fridge type fmic whilst running 300-350WHP

I would like to find stat's on weight though! The AMS weighs 11.5KG, I wonder what the HPF weighs in at??

Lighter than the AMS, and has the extra support brackets for extra piece of mind.

there you go get the HPF FMIC

Everyone's perception of what is the best product is different, as they all have different designs and features which appeal to us in different ways i.e you like the fact the HPF includes the oem fittings whereas some guys think the oem fittings are a PITA and want silicon items, others might not want cut plastics and get the 5" ETS FMIC etc etc etc